구강악안면외과와 관련된 국내 학술지의 통계분석방법의 적용에 대한 연구

박광범,강태호,박정열 조선대학교 구강생물학연구소 2003 口腔生物學硏究 Vol.27 No.1

The purpose of this study to evaluate the statistical errors of domestic articles in the Journal of Korean Oral and Maxillofacial Surgeons and the Journal of Korean Maxillofacial Plastic and Reconstructive Surgeons. Of the articles, 131 articles were included which analyzed the data statistically. We made a checklist for detecting the errors according to the following steps: the of the experiment, the application of analytic method, and conclusion of the experiment. The results of this study were as follows 1. There were significant statistical errors in 23 of all 131 articles which may 18%. 2. Statistical errors in sample representive were 21 portions of 66 articles, in which the error rate of the sample design was 85.7% and the error rate of the classification and grouping was 14.3%. 3. Statistical errors in data description were 21 portions of 65 articles, in which the error rate of the measure of location was 85.7% and the error rate of the measure of dispersion was 33.3%. 4. Statistical errors in t-test were 78 portions of 41 articles, in shich the error rate of the normality was 51.3%, the error rate of the equality of variance was 46.2% and the error rate of the independence of observations was 2.5%. 5. Statistical errors in x^2 test were 8 portions of 3 articles, in which the error rate of the null hypothesis and the independence of observations was 37.5% and the error rate of the small number hypothesis was 25%. 6. Statistical errors in variance analysis were 18 Portions of 11 articles, in which the error rate of the null hypothesis was 44.4%, the error rate of the normality was 39% and the error rate or the sample size was 16.6% 7. Statistical errors in regression analysis were 8 Portions of 5 articles, which in the error rate of the normality of observations was 50%, the error rate of the additional model test was 37.5% and the error rate of the multicollinearity was 12.5%.

소음 측정·평가법의 최근 동향과 그 문제점에 관한 연구

이광태 경남대학교 신소재연구소 1997 論文集 Vol.9 No.-

소음의 평가법은, 주파수의 변동과 레벨변동을 어떻게 처리해서 지역주민에 미치는 심리적 영향을 어떻게 측정ㆍ평가할 것인가의 합리적인 관계를 설정하는 것이다. 그러나 인간의 심리적 불쾌감의 속성과 그에 영향을 미치는 대상소음의 속성에 따라서 그 취급방법에는 차이가 있다. 본 연구는 이러한 각종 소음 평가법이 제외국에서 어떻게 이용되고 있으며, 이들의 사용상에서의 문제점을 지적하고, 또한 국제화의 동향 속에서, 각종의 평가법 및 그에 따른 평가기준에 우리에 실정에 맞추어서 체계적으로 확립되어야 할 필요성을 강조하고 아래와 같이 그 방향 및 기준을 제시하였다. ① 소음평가의 기초연구에 있어서의 심리적 속성(loudnessㆍnoisenessㆍannoyance 등)의 개념의 명확화 ② 충격성 소음의 심리적, 생리적 평가법의 확립 ③ 이종소음으로부터의 소음의 통일적 평가법의 확립 ④ 실험실 실험과 사회조사의 정합 ⑤ 주민반응 혹은 피해정도의 객관적 정량화 등 The 'Noise Measuring and Rating Method, can be termed as how to analyze variations in frequency and sound 'level of noise. and to establish the relations between measurement and evaluation of psychological effect of noise on inhabitants. But, there are kinds of diffences between the various noise evaluations, according to the characteristic of psychological discomfortness felt by inhabitants and of the sound source having influenc upon on their discomfortness. Therefore, this study intended to investigate the current use of those preexisted noise evaluation methods and the problems in the practical application of them, to emphasize the necessity to revise the conditions and guides of the methods, and t o show the directions for establshing newly revised methods.

일 간호대학의 간호환경시스템 통합실습방안 적용 : 간호관리학과 지역사회간호학의 통합

김광숙,이경자,김의숙,이정렬,김인숙,이태화,조윤희,정제인,이현정,배선형,김은현 대한간호학회 간호행정학회 2008 간호행정학회지 Vol.14 No.1

Purpose: Integrated curriculum has been considered as a desirable method in health related school course. The present study was conducted to develop practice curriculum which integrates nursing management and community health nursing and measure the education effect. Method: Literature review and scores of professional meeting were carried out to generate main educational goals, contents, operating principle, and evaluation item. Student evaluation was done by survey and in-dept interview in right after practicum and three months respectively. Results: Six concepts were derived as main component of the integrated curriculum. From 2 to 3 sub-categories were matched to each main component as well. Subsequently, practice contents were suggested on the basis of sub-categories. Attainment of practicum goal scores ranged from 2.82 to 3.54 in four points index. Students expressed that they found nursing manager's role in the community setting. Conclusion: This new approach encouraged students to ascertain relationship between hospital oriented and community based practice. Additionally, they can be prepared to comprehend diverse health care environment.

放射線 影像 評價法에 關한 考察

주광태 김천대학교 1990 김천대학교 논문집 Vol.11 No.-

The radiographic evaluation is done up to date mostly by sense of sight and perception. Because the subjective evaluation by in-terpreter, it is necessary that interpreter must be analysis radio-graphic image in order to the objective and the quantity. The characteristics of physical evaluation are as follow; 1 ROC curve is obtainable to sensitivity, speciainess and max-imum inpormation of the radiographic quality by the ROC analysis. 2 Because fog of the image appea on the all system, MTF can be known resolving power of the image. 3 Wiener spectrum can be known degree of accuracy in the re-gion of spatial frequency or each mottle of film graininess. 4 Entropy can be evaluation to the RMS granularity and the radiographic contrast. But more important than above, evaluation of the radiography is required hard study with the stage of artificial intelligence and in order to unification physical factor with perception.

後方散亂線이 放射線寫真 濃度에 미치는 影響

주광태 김천대학교 1988 김천대학교 논문집 Vol.9 No.-

The successfull image of any radiography must not influence on the film by radiation scatter. In case of reached the film to scatter will be reduced film contrast and sharpness. For find out the differential dentisty of flim by the scatter is experimented suca as : the lead foil of various thickness is contacted behind the film cassette, used to non-screen and itensifying screen, varience of radiation field size. The results can be summarized as following; 1. The difference of radiographic density is increased with X-ray tube voltage up, larger the radiation field size and larger the intensifying factor. 2. In case of positioned shield material behind film cassette, difference of film density is changed some and it was more increase when is used fluorescent intensifying screen. 3. When is larger the differential film density by the back scatter shall be increased thickness of shield behind back scatter.

공동주택 단지내 도로체계 및 주동배치에 관한 연구

이광태 慶南大學校 附設 工業技術硏究所 1997 硏究論文集 Vol.15 No.1

공동주택은 가용택지 부족에 따른 단위주호를 집단화 하므로서 토지의 효율적인 이용이 가능할 뿐아니라 각종시설 및 설비의 고도화에 따른 주생활의 효율화, 관리의 容易, 공동화의 利點을 추구 할 수 있어 주거에서 차지하는 비중이 날로 증가하고 있다. 이에 따라 수많은 아파트 단지가 건설·계획되어졌으나 대부분 토지 이용의 극대화와 주택의 양적 공급에 차중하므로서 인간의 定住환경은 쾌적성을 상실하게 되었다. 특히 외부공간은 주동을 배치하고 남은 여분의 대지에 도로 및 주차장을 설치한 후, 접근성이 불량한 대지에 다시 놀이터, 휴게소 등을 설치하여 거의 사용되지 않는 빈 공간에 최소한의 녹지공간을 설치하므로서 외부공간은 그 기능을 발휘하지 못할 뿐아니라 건물과 외부공간, 외부공간 상호간에 유기적 관계가 확보되지 못하고 있는 실정이다. 따라서 본 연구는 이러한 점에 착안하여 공동주택의 계획시 보다 합리적이고 체계적이며 이용에 있어 더욱 효율성 있는 외부공간을 구성하기위해, 대지형상과 호수밀도가 어떠한 관계를 갖는지와 호수밀도가 단지 내 도로체계 및 주동배치에 어떠한 영향을 미치는지를 비교·분석하고, 주동배치가 대지형상과 단지내 도로체계와 어떠한 상관을 갖는지를 종합적으로 검토하여 보았다. The importance of multi-family housing has been being increased because of the merit of the effect use of land, the comfortness of housing with the compact installation of equipments, convenience of management and commonage of various facilities. And so, a lot of apartment sites were planned and constructed widely as main housing systems. But the highlization of land use and the quantative supply of house made the qualitative conditions of liveliness and comfortness worse. Especially. the outdoor open space was not functioned well, because the apartment was layouted first of all, the vacant areas enclosed by those apartment buildings was used for parking lots. Only the wasted areas was planned for playground, and rest place etc. On those concepts, we first investigated pre-existed apartment lots and typified main roads and apartment layouts. Secondly, we found out the relations of density with site shape, main inner road, apartment layout. Third, we seeked for apartment-layolut type according to the site shape and main-road system.

牙山灣 底魚類 : Ⅱ. 鍾組成의 晝夜 및 季節變動 Ⅱ. Diurnal and Seasonal Variation in Abundance and Species Composition

李泰源,金光天 충남대학교 기초과학연구소 1992 연구논문집 Vol.12 No.-

Diurnal and seasonal variation of demersal fishes of Asan Bay were studied using seasonal samples collected by an otter trawl from autumn 1989 to summer 1990. For each sampling period, three to five trawl hauls were completed to obtain day and night samples. Of 32 species identified, Chaturichthys stigmatias, Cynoglossus joyneri, Thrissa koreana, Repomucenus lunatus and Hexagrammos otakii accounted for 79.5% of the individuals collected, and C. joyneri, T. koreana, H. otakii, Raja kenojei and Kareius bicoloratus constituted 67.1% of the biomass obtained. Apparently, larger number of individuals and greater biomass were collected in night hauls. However, there is no significant difference between day and night samples in community structure, mean abundance and body length of the dominant demersal species. The greatest numbers and biomass of fishes were collected in summer and the lowest in winter. The abundance of fishes in the study area were dependent upon seasonal effects such as temperature.

陰2進法 變煥回路의 設計

안광선,朴圭泰 연세대학교 산업기술연구소 1977 논문집 Vol.7 No.1

. In the common positional number representation system, adoption of negative bases results in a system that can represent both positive and negative numbers with equal facility without the use of complementation method or the signs +and -. In this paper, conversion algorithm between negative and positive radix representation is considered for an arvitrary integer radix and the results established are applied to the logic circuits design of a serial radix(-2) converter that converts standard binary numbers to nega-binary numbers. This converter is considered to perform the important role in system that utilizes both negative and positive radix binany number systems.

音樂用 홀 平面類型의 變遷過程에 關한 硏究

이광태 慶南大學校 附設 工業技術硏究所 1998 硏究論文集 Vol.15 No.3

홀 설계시, 많은 건축가들은 건축 디자인 적 측면에서는 우수한 디자인 감각과 능력을 소유하고 있으나, 그들 대다수가 음향적 측면에서의 훌륭한 홀을 평가할 수 있는 음악적 감각은 대체로 겸비하지 못하고 있다. 반면, 음향적 측면에서는 세세한 음향적 평가와 측정에 대한 연구는 세세한 영역에까지 발달하고 있으나, 다양한 홀 형태까지 결정하여 줄 수 있는 음향기술자는 드문 것이 현 실정이다. 또한 홀 형태 결정을 위한 평면 유형의 고찰도 그다지 이루어지지 못하고 있다. 본 연구는 이러한 점에 착안하여, 음악용 홀의 계획·디자인 단계에서 최적의 평면형태를 결정하기 위한 방향을 제시하고자, 음악용 홀의 평면유형의 변천과정에 관한 연구를 행하였다. 음향적으로 양호한 평가를 받고 있는 음악용 홀로서 객석수가 500석 이상이고 실용적이 5.000㎥ 이상인 콘서트 홀, 주용도가 음악용인 다목적 홀과 오페라 극장을 연구 대상으로 하여, 평면유형의 변천과정을 고찰한 결과, 평면 유형의 발전단계 뿐만 아니라 널리 사용되었던 연대를 명확하게 개괄할 수가 있으며, 같은 평면 유형일지라도 홀의 사용목적에 따라 사용빈도를 달리하는 것을 알 수 있었다. When the music hall is being designed, many architects have the superior senses in which they are capable of planning and designing its shape. But most of them don't accurately the acoustical estimation for the music hall. Even if the study on the acoustical estimation and measurement is being widely processed, it is ordinary that there are few acoustical consultants who can make an practical advice for decision of the interior shape of the hall. And the typification and analysis of the plan and section has not almost been studied. On the basis of the above-mentioned problems, this study was attempted to investigate how the plans have been developed and how often they have been used on the focus of the functions of the music hall(that is to say, the concert hall, the multi-purpose hall mainly for the concert and the opera hall). The acoustically good-estimated auditoriums for symphony performance with more than 500 seats and 5.000㎥ were selected. While examining the developed process of plans, we could approximately inspect the period of years when each plan had been used, and find out that plans frequently used are different from each other according to the purpose of auditoriums.

음장 시뮬레이션에 의한 실내음향설계의 문제점 및 그 전망에 관한 연구

이광태 慶南大學校 附設 工業技術硏究所 1994 硏究論文集 Vol.12 No.-

폐공간의 실내음장의 음현상을 수치해석적 수법에 의해서 근사예측하는 음장예측 시뮤레이션의 기본적 개념 및 실제 건축음향설계에의 적용성을 검토하여 문제점을 도출하고 장래의 음장예측 시스템의 방향을 제시하여보았다. Various computer-oriented simulation systems have been developed rapidly, approximately to predict the characteristics of the sound field in the closed space of rooms, by means of numerical analysis techniques. And they are widely being used to the practical acoustical design But In spite of all this activity, it cannot be mentioned that they have been successfully applied to the design and able to predict accurately the acoustical characteristics of the room for music or speech design and able to predict accurately the acoustical characteristics of the room for music or speech It is therefore important to examine the general problems of the basic theories, which the simulations are based on, and the realistic problems on practical applications of them. And through such an approach, We will be able to provide a valuable help to efficiently improving shortcomings of these simulations and developing more powerful alternatives to the effective and easy-to-use computer simulation.